1. A style of hardcore that emerged in New York City in the late 1980s, typified by lots of sing-along parts and mid-tempo breakdowns. Key bands include Youth of Today, Judge, Bold, and Gorilla Biscuits.
2. The fashion and aesthetic associated with youth crew hardcore. Hi-tops, "varsity" type fonts, posi, and especially straight edge are a few of the key elements.

In My Eyes are more influenced by youth crew than by old Boston hardcore.